refs #5845
- adds custom adapter for tags so that `store.queryRecord('tag', {slug: 'tag-slug'})` hits the `/tags/slug/tag-slug` endpoint instead of `/tags/?slug=tag-slug`
- updates tag management screens to use tag slugs instead of IDs
- adds `/tag/:slug/edit` redirect to front-end
refs #5845
- Updates tag settings screen to match content screen behaviour. Each now tag has it's own route that is link-able from other areas of the app
- Updates a number of places where jQuery event handler code was not wrapped in Ember's run loop
no issue
- adds `shouldBackgroundReloadRecord` override so that we keep the current behaviour (never background reload unless instigated manually) when we upgrade to Ember Data 2.0 which will always background-reload by default
No issue
- fixed "{{#each}}" helper in templates to use block syntax
- fixed deprecated ember.controller getter/setter function to use new syntax
- removed unnecessary pass-protect route view
